98
(3). Carburetor fuel level too low or Check and adjust float chamber needle valve mixture
too lean
(4). Carburetor measuring orifice blocked or
Clean float chamber watery
(5). Spark plug overheated or too much carbon deposits
Adjust and service
(6). Intake valve sealing not well Check and service
(7). Intake manifold or connecting hose vacuum leakage Check and service
14.
Oil pressure warning light is illuminated during engine running.
Cause
Correction
(1). Engine oil level too low or not correct Fill in engine oil or apply correct engine oil
(2). Oil pressure warning light woks abnormally Replace Oil pressure warning light
(3). Engine temperature too high See No. 17.
(4). Engine bearing or fuel pump worn out
Check, service or replace
(5). Fuel pump relief valve binding or spring deformed
Check or replace
(6). Oil collector blocked or loose Clean or replace or tighten
15.
Engine self ignited.
Cause
Correction
(1). Too high idle speed, too lean mixture or Adjust idle speed or fast idle boost fast idle gear out of work
(2). Incorrect fuel grade
Use fuel of correct grade
(3). Too much carbon deposits in Spark plug or combustion chamber
Clean carbon deposits
(4). Idle cut-off valve not works or circuit trouble
Service or replace
(5). Choke and throttle valve out of work
Check relevant connecting
mechanism
16.
Engine noise.
(1). Preignition or knocking occurs during accelerating or under heavy load
Cause
Correction
a.
Incorrect ignition timing
Check ‘teeth’belt tension, tension pulley or distributor
b.
Incorrect fuel grade
Use fuel of correct grade
c.
Intake manifold or connecting hose vacuum leakage
Check and service
d.
Too much carbon deposits in Spark plug or combus
tion chamber carbon severely
Clean carbon deposits
Содержание JNSZ1600DL
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